Salmonide 99 
ernmost locality from which I have obtained trout, they seldom 
exceed a length of six inches. Although not usually an ana- 
dromous species, the rainbow trout frequently moves about in 
the rivers, and it often enters the sea, large sea-run specimens 
being often taken for steelheads. Several attempts have been 
made to introduce it in Eastern streams, but it appears to seek 
the sea when it is lost. It is apparently more hardy and 
less greedy than the American charr, or brook-trout (Salvelinus 
Fic. 62.—Rainbow Trout (female), Salmo irideus shasta Jordan. (Photograph 
by Cloudsley Rutter.) 
fontinalis). On the other hand, it is distinctly inferior to the 
latter in beauty and in gaminess. 
Three varieties of some importance have been indicated, 
Salmo irideus stonei, the Nissui trout of the Klamath, with spots 
on the posterior parts only, Salmo irideus shasta of the upper 
Sacramento, and the small-scaled Salmo irideus gilbert of the 
Kings and Kern rivers. In the head-waters of the Kern, in a 
stream called Volcano Creek or Whitney Creek, the waterfall some- 
times called Agua-Bonita shuts off the movements of the trout. 
Above this fall is a dwarf form with bright golden fins, and the 
scales scarcely imbricated. This is the ‘golden trout of Mount 
Whitney,” Salmo irideus agua-bonita. It will possibly be found to 
change back to the original type if propagated in different waters. 
In beauty of color, gracefulness of form and movement, 
